Question

PLEASE HURRY
A biologist estimated the number of cells in a culture sample as 1.3 × 102. One week later, he looked at the same culture sample and estimated that the number of cells had grown to 3.9 × 105.

Determine how many times larger the culture sample was compared to a week earlier.

(3.9 × 105)
(1.3 × 102)

Complete the quotient in scientific notation and find the solution in standard notation.

× =

Answer 1

Answer:

x = 3 ×10^2

Step-by-step explanation:

To determine how many times larger the culture sample was compared to a week earlier

We divide the values of the present sample to the past sample size

3.9 x 10^5/ 1.3 ×10^2

3.9/1.3 x10^5-3 = 3 ×10^2

Answer 2

Answer-

the first box is 3 the second is 10 to the third then the last = 3,000

Step-by-step explanation:

just did it